from tkinter import * 
 
print('Введите начальную координату X:') 
X = int(input()) 
print('Введите начальную координату Y:') 
Y = int(input()) 
print('Введите коэффицент увеличения N:') 
N = int(input()) 
coords= [0, 0, 10, 0, 10, 20, 10, 20, 30, 10, 30, 10, 20, 0, 20.] 
root = Tk() 
root.title("ИТ марафон") 
root.geometry("500x500") 
 
canvas = Canvas(bg="white", width=500, height=500) 
canvas.pack(anchor=CENTER, expand=1) 
if N==0 and X>=0 and X<=500 and Y>=0 and Y<=500: 
    pass 
else: 
    if N>0 and 0*N+X>=0 and 0*N+Y>=0 and 0*N+X<=500 and 0*N+Y<=500: 
        pass 
    else: 
        if N<0 and 20*N+X>=0 and 20*N+Y>=0 and 0*N+X<=500 and 0*N+Y<=500: 
            pass 
        else: 
            print("Размер фигуры превышает максимальный размер поля") 
            exit() 
 
canvas.create_polygon(coords[0] *N+X, coords[1] *N+Y, 
                        coords[2] *N+X, coords[3] *N+Y, 
                        coords[4] *N+X, coords[5] *N+Y, 
                        coords[6] *N+X, coords[7] *N+Y, 
                        coords[8] *N+X, coords[9] *N+Y, 
                        coords[10]*N+X, coords[11]*N+Y, 
                        coords[12]*N+X, coords[13]*N+Y, 
                        coords[14]*N+X, coords[15]*N+Y, 
                        fill="#fb0") 
root.mainloop()